Surface websites use ______ to browse the web in a systematic and automated manner.

a. worms
b. crawlers
c. bugs
d. scanners


b. crawlers

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An experimental hypothesis is ______________

a. a statement of a causal explanation or proposition that has at least one independent and one dependent variable, and has yet to be empirically tested b. a hypothesis that states there is no significant effect of an independent variable on a dependent variable c. a hypothesis paired with the null hypothesis with two independent variables in which it is unclear whether one or the other variable, or both in combination, produces an effect d. a confusing and poorly designed hypothesis with two independent variables making it unclear whether one or the other variable, or both in combination, produces an effect

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Which theory holds to the tenet that getting married helps people stay out of trouble?

a. state dependence theory b. social schematic theory c. age-graded theory d. life course theory

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In an empirical journal article, what information about research does a methods section describe, and what elements does it include?

What will be an ideal response?

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_____ is considered to be at the heart of local intelligence systems

a. Information hiding b. Information sharing c. Information coding d. Information retrieval

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